Jayna is a DC Comics superheroine. Jayna and her twin brother Zan were both created by Hanna-Barbera for the Superfriends TV series as the Wonder Twins. Jayna has the ability to transform into any animal, whether real or mythological. The Wonder Twins were aliens from the planet Exxor sent to Earth to learn about justice and heroism from the Superfriends. The Wonder Twins eventually made their first comic appearance in Extreme Justice #9 (October 1995).